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clod porosity

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Catalogue: GRDC Research Summaries
Ground Cover Radio 109 Northern research measures dual purpose profitability.. Dual-purpose winter grains for grazing and cropping are planted to a relatively small area in the northern grain-growing region, but GRDC-funded research has shown the significant profit potential of this versatile system in this region... Grazing fertile, cracking clay soils in northern New South Wales is not widespread due to concerns about the effects of livestock trampling on the soils' physical conditions...
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Catalogue: GRDC Updates
Prior to sowing wheat in April, clods will be collected from the same, GPS located sites and scanned for soil structural properties using tomography and SCAMP. Soil moisture and NDVI will be monitored before a yield map is generated that will be compared to the original LRI map for any relationship between livestock presence and grain yield... The extent of change in porosity in clods collected from 10-20cm depth (the depth at which livestock compaction is typically observed) shows no relationship between Livestock residence and clod porosity (Figure 4)... Livestock residence index and porosity of clods collected from 20 sites ranging from low to high LRI..
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